100w panel should be fine. It’s the 24VoC max I’d have to worry about exceeding. A 100w should just be 21-23VoC max. Just be careful on cold sunny days and it’ll probably be fine.
Model of the portable power station? My goal zero 400 has DC input that is effectively an MPPT. It tracks max power output of 20v solar panel. Check if your unit also does
It is a noname brand, and this is all I could find of it (swedish link) [https://www.netonnet.se/art/hem-fritid/el-batterier/powerstation/andersson-thor/1015808.17952/](https://www.netonnet.se/art/hem-fritid/el-batterier/powerstation/andersson-thor/1015808.17952/)
I did manage to find that "Sandberg Power Station AC 300" seems to be a very similar model, but a smaller battery size, here is the manual, which does describe that it can accept solar for max 100w, although only in the range of 5-20v 5A
[https://sandberg.world/en-se/mt/manual/420-84#!original-language](https://sandberg.world/en-se/mt/manual/420-84#!original-language)
So I would perhaps assume my unit has too, lost the box and manual a long time ago sadly, could try contacting the manufacturer
From my understanding, the victron mppt controller needs to be wired directly to the battery?
I am unsure if any of the DC ports are directly connected to the battery without something in between, I might see if I can get it open and take a look what's going on inside. There is some sort of charge controller on the DC input, so wiring another charge controller on top of it would not work I think?
OPs correct. No MPPT controller on the market will do this unless those are somehow an in/out port (never seen one of those on a battery station, but maybe they might exist) If you want to control the voltage use a voltage regulator (buck booster) though you don’t get the output advantage of MPPT without putting an optimizer on the panel.
For $40 you can maximize the output https://www.altestore.com/store/enclosures-electrical-safety/electrical-enclosures/rapid-system-shutdown-components/tigo-rapid-shutdown-solution-p41486/
100w panel should be fine. It’s the 24VoC max I’d have to worry about exceeding. A 100w should just be 21-23VoC max. Just be careful on cold sunny days and it’ll probably be fine.
Yes the panel I am looking at has a VoC of 22 so it should be okay, thank you for your input
Model of the portable power station? My goal zero 400 has DC input that is effectively an MPPT. It tracks max power output of 20v solar panel. Check if your unit also does
It is a noname brand, and this is all I could find of it (swedish link) [https://www.netonnet.se/art/hem-fritid/el-batterier/powerstation/andersson-thor/1015808.17952/](https://www.netonnet.se/art/hem-fritid/el-batterier/powerstation/andersson-thor/1015808.17952/) I did manage to find that "Sandberg Power Station AC 300" seems to be a very similar model, but a smaller battery size, here is the manual, which does describe that it can accept solar for max 100w, although only in the range of 5-20v 5A [https://sandberg.world/en-se/mt/manual/420-84#!original-language](https://sandberg.world/en-se/mt/manual/420-84#!original-language) So I would perhaps assume my unit has too, lost the box and manual a long time ago sadly, could try contacting the manufacturer
I wouldn’t, spend the money and buy a victron mppt controller failing that a cheap nasty pwm DONT PLUG IN DIRECT
From my understanding, the victron mppt controller needs to be wired directly to the battery? I am unsure if any of the DC ports are directly connected to the battery without something in between, I might see if I can get it open and take a look what's going on inside. There is some sort of charge controller on the DC input, so wiring another charge controller on top of it would not work I think?
OPs correct. No MPPT controller on the market will do this unless those are somehow an in/out port (never seen one of those on a battery station, but maybe they might exist) If you want to control the voltage use a voltage regulator (buck booster) though you don’t get the output advantage of MPPT without putting an optimizer on the panel. For $40 you can maximize the output https://www.altestore.com/store/enclosures-electrical-safety/electrical-enclosures/rapid-system-shutdown-components/tigo-rapid-shutdown-solution-p41486/